CN101877228A - Method and device for capturing label surface code signals - Google Patents
Method and device for capturing label surface code signals Download PDFInfo
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- CN101877228A CN101877228A CN2009101322887A CN200910132288A CN101877228A CN 101877228 A CN101877228 A CN 101877228A CN 2009101322887 A CN2009101322887 A CN 2009101322887A CN 200910132288 A CN200910132288 A CN 200910132288A CN 101877228 A CN101877228 A CN 101877228A
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- reflected light
- total amount
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Abstract
The invention relates to a method and a device for capturing label surface code signals. A circle of or a plurality of predetermined codes in an inner ring operation characteristic area of the label are read by utilizing a reading head to generate reflected light total amount signals, and the mean of the reflected light total amount signals are calculated by using the calculation unit. The standard value of a dynamic cutter is set to be half of the mean, the reflected light total amount signals are cut, and code signals are captured. The code signals are decoded by a processor to form information of a light carving disk.
Description
Technical field
The method and the device of the relevant a kind of light carving dish label surface acquisition signal of the present invention, especially utilize cutter about CD-ROM drive, the reflected light total amount signal of ring operation characteristic zone changes in the label surface, the method and the device of the interior ring operation characteristic zone coded signal of acquisition label surface.
Background technology
General CD has the two sides, and one side is a data surface, and one side is a label surface, and the method for known making label is marked on label surface to discern for utilizing pen or label paster.For attractive in appearance and individualized, so the technology of development bright dipping carving (Light Scribe) label utilizes the read head (Pick-up Head) of CD-ROM drive to launch laser, the pictograph that the user is required is inscribed on the label surface of light carving dish.The inner margin portion of label surface operation characteristic zone (Control Feature Zone) is provided with a plurality of width of cloth silks (Spoke), and these width of cloth silks are evenly distributed in the operation characteristic zone inner edge in the equal angles mode; By to the reading and judge of width of cloth silk, in the usefulness of the location of relative position, make on the label surface that is inscribed in light carving dish that pictograph can be correct in the time of can providing read head to describe in the label area.The coded signal of ring operation characteristic zone can provide this light carving dish relevant information in the label surface, for example: the information such as identification signal of this light carving dish.
Known CD-ROM drive is to ring operation characteristic zone coded signal acquisition method and device in the label surface, be to encircle operation characteristic zone in the read head emission laser radiation label surface, receive the reflected light of operation characteristic zone coding, conversion also forms radiofrequency signal (Radio Frequency Signal via amplifier; Abbreviation RF signal) reflected light total amount signal.During known interpretation reflected light total amount signal, be to utilize fixed cutter (Fixed Slicer) to set a fixing standard value, the standard value of reflected light total amount signal magnitude and fixed cutter is compared, the overgauge value be judged to be high level (digital high) signal, and be judged to be low level (digital low) signal less than standard value, interpretation goes out coded signal, the information that is decoded into ring operation characteristic zone in the label surface that just can be successful.
Yet the reflectivity of the luminance factor data surface of light carving dish label surface is poor, when therefore in interpretation light carving dish label layer, encircling the operating characteristics coded signal, the detected reflected light total amount of read head signal is good not as the reflected light total amount signal that measures at data Layer, and because read head gain value settings mistake is easy to separating generation erroneous judgement on the read signal.As shown in Figures 1 and 2, state for the erroneous judgement of known technology signal, Fig. 1 sets mistake or reflected light total amount signal for the amplifier gain value and skew occurs and can make reflected light total amount signal 11 produce to go up saturated phenomenon, drop on the fixed cutter standard value 12, causing the 11 easy interpretations of reflected light total amount signal is high level signal, and captures into error coded signal 13; Otherwise, Fig. 2 sets mistake for the amplifier gain value or the phenomenon that skew can make that 14 generations of reflected light total amount signal are satisfied and closed down appears in reflected light total amount signal, and drop under the fixed cutter standard value 12, causing the 14 easy interpretations of reflected light total amount signal is low level signal, and captures into error coded signal 15.The standard value 12 that the utilization of said fixing cutter is fixing makes CD-ROM drive that the coded signal of ring operation characteristic zone in the light carving dish label surface is captured mistake easily, and causes the drawing pattern of label surface to produce distortion, distortion, even can't portray.Therefore, known CD-ROM drive still has problem to need to be resolved hurrily to the acquisition mode and the device of ring operation characteristic zone coded signal in the light carving dish label surface.
Summary of the invention
The object of the present invention is to provide a kind of acquisition method of label surface code signals, along with on average planting of the reflected light total amount signal magnitude of interior ring operation characteristic zone coding, dynamically set the cutting standard value, to guarantee to capture the coded signal of ring operation characteristic zone in the label surface.
Another object of the present invention is to provide a kind of acquisition method of label surface code signals, dynamically determine to cut standard value by the reflected light total amount signal averaging of being scheduled to ring operation characteristic zone coding in several, with the coded signal of ring operation characteristic zone in the accurate acquisition label surface.
In order to reach the purpose of aforementioned invention, ring operation characteristic zone one circle or predetermined several codings produce reflected light total amount signal in the acquisition method of label surface code signals of the present invention, reading tag face; Calculate reflected light total amount signal magnitude mean value; Set the cutting standard value at mean value 1/2nd; Cutting reflected light total amount signal, the acquisition coded signal; The decoding and coding signal becomes the information of operation characteristic zone.
A further object of the present invention is to provide a kind of capture device of label surface code signals, utilize computing unit, calculate the mean value of coding reflected light total amount signal magnitude, the standard value of dynamic cutter is located at 1/2nd places of mean value, with correct acquisition coded signal.
In order to reach the purpose of aforementioned invention, the capture device of label surface code signals of the present invention utilizes read head emission laser radiation in light carving dish label surface, and receives the reflected light of its operation characteristic zone coding, forms reflected light total amount signal.The mean value of computing unit calculation code reflected light total amount signal magnitude.The standard value that dynamic cutter is dynamically set cutting is at 1/2nd of reflected light total amount signal magnitude mean value, and cutting reflected light total amount signal becomes high level or low level signal, with the acquisition coded signal.This coded signal of processor decodes is with output light carving dish information.
Description of drawings
Fig. 1 is a state of saturation synoptic diagram on the known technology signal.
Fig. 2 is a state of saturation synoptic diagram under the known technology signal.
Fig. 3 is the functional block diagram of utilization coded signal capture device of the present invention.
Fig. 4 is the synoptic diagram of first embodiment of the invention coded signal acquisition process.
Fig. 5 is the process flow diagram of first embodiment of the invention coded signal acquisition method.
Fig. 6 is the synoptic diagram of second embodiment of the invention coded signal acquisition process.
Fig. 7 is the process flow diagram of second embodiment of the invention coded signal acquisition method.
[primary clustering symbol description]
20 coded signal capture devices
21 light carving dishes
22 read heads
23 computing units
24 dynamic cutters
25 processors
26 width of cloth silk districts
27 operation characteristic zone
30,42 reflected light total amount signals
31,43 reflected light total amount signal averagings
32,44 cutter standard values
33,45 coded signals
41 width of cloth silks
Embodiment
Relevant the present invention reaches technological means and the effect thereof that above-mentioned purpose adopts, and lift preferred embodiment now, and conjunction with figs. is illustrated as follows.
Please refer to Fig. 3, capture the functional block diagram of label surface code signals device for utilization the present invention.The present invention captures label surface code signals device 20 and is located in the CD-ROM drive, comprises light carving dish 21, read head 22, computing unit 23, dynamic cutter 24, reaches processor 25.Wherein read head 22 emission laser radiations encircle in the light carving coils 21 label surface, ring has width of cloth silk district 26 and operation characteristic zone 27 in the label surface, be radiated at the reflected light of operation characteristic zone 27 codings, convert the reflected light total amount signal 30 (please join Fig. 4) of RF signal to through reception, reflected light total amount signal 30 input computing units 23, calculate the mean value of operation characteristic zone 27 coding reflected light total amount signals 30 sizes, dynamically set 1/2nd places of the standard value of dynamic cutter 24 according to mean value at mean value, allow standard value dynamically with reflected light total amount signal 30 size conversion, and be positioned at the central authorities of reflected light total amount signal 30 sizes, the reflected light total amount signal 30 of coding is handled through dynamic cutter 24, fechtable becomes high or low level signal, input processor 25, after decoding, be ring operation characteristic zone 27 coded signals in the correct light carving dish of fechtable 21, the relevant light carving of ring operation characteristic zone 27 coded signals coils 21 information to the main frame (not shown) in the output at last, to control CD-ROM drive.
Please also refer to Fig. 3 and Fig. 4, Fig. 4 is the acquisition process of first embodiment of the invention label surface code signals.Aforementioned read head 22 receives the reflected light total amount signal 30 of operation characteristic zone 27 codings, by computing unit 23 signal calculated crest values and trough value, the size of tracer signal is revolved the reflected light total amount signal 30 big or small mean values 31 that calculate a circle coding after turning around at light carving dish 21.With the standard value 32 of dynamic cutter 24, dynamically be set in 1/2nd places of the mean value 31 of reflected light total amount signal 30 again.After dynamically the standard value 32 of cutter 24 is set, reflected light total amount signal 30 and standard value 32 are compared, be higher than dynamic cutter 24 standard values 32 and be high level signal, otherwise, be lower than dynamic cutter 24 standard values 32 and be low level signal, to obtain coded signal 33.Handle coded signal 33 later through dynamic cutter 24 interpretations, in the input processor 25, can correct decoding convert the information that the light carving coils ring operation characteristic zone 27 in 21 label surface to again.
As shown in Figure 5, be the process flow diagram of first embodiment of the invention capturing label surface code signals method.Dynamic cutter standard value is dynamically set in the present embodiment utilization, and the step-by-step procedures that correctly captures ring operating characteristics coded signal in the light carving dish label surface is as follows: by step R1 light carving dish is inverted into CD-ROM drive, makes the read head can be over against light carving dish label surface; Step R2 read head emission laser encircles operation characteristic zone in light carving dish label surface, and obtains reflected light total amount signal; Step R3 imports computing unit with reflected light total amount signal, and calculates the mean value of reflected light total amount signal magnitude; Step R4 dynamically sets dynamic cutter standard value to 1/2nd of reflected light total amount signal averaging according to the mean value of reflected light total amount signal; Step R5 reflected light total amount signal behind the cutting reflected light total amount signal acquisition coded signal, enters step R6 through the processing of dynamic cutter, and input processor is decoded into the information of ring operation characteristic zone in the light carving dish label surface smoothly.
Therefore, the acquisition method of first embodiment of the invention label surface code signals and device, can be along with the reflected light total amount signal magnitude of interior ring operation characteristic zone coding, utilize computing unit, calculate the mean value of coding reflected light total amount signal magnitude, dynamically set dynamic cutter standard value at 1/2nd places of mean value, make standard value be positioned at the central authorities of reflected light total amount signal magnitude, reach the purpose of guaranteeing to capture ring operation characteristic zone correct coding signal in the label surface.
As shown in Figure 6, be the acquisition process of second embodiment of the invention label surface code signals.Because the ring operation characteristic zone presents a plurality of zigzags and block coding structure in the label surface, and comprised high-reflection region and low echo area, and the interior ring of light carving dish label surface operation characteristic zone coding is along with the width of cloth silk 41 in width of cloth silk district is arranged.Present embodiment is according to predetermined several width of cloth silks 41, collect the reflected light total amount signal 42 of coding, calculate the wherein mean value 43 of reflected light total amount signal 42 sizes, dynamically set dynamic cutter standard value 44 at 1/2nd of mean value 43, standard value 44 is dynamically moved with the mean value 43 of reflected light total amount signal 42 in predetermined several width of cloth silks 41, allow standard value 44 more can maintain reflected light total amount signal 42 central authorities of predetermined several codings, avoided the situation of standard value that odd encoder causes 44 skews one side, so that cut reflected light total amount signal 42 more accurately, and improve the correctness of encircling operating characteristics coded signal 45 in the decoding light carving dish label surface.
As shown in Figure 7, be the process flow diagram of second embodiment of the invention capturing label surface code signals method.Dynamic cutter standard value is dynamically set in the present embodiment utilization, and the step-by-step procedures that correctly captures ring operation characteristic zone coded signal in the light carving dish label surface is as follows: order about the light carving dish light inlet that is inverted to such an extent that read head can be over against light carving dish label surface by step S1; Step S2 read head emission Shu laser encircles operation characteristic zone and obtains reflected light total amount signal in the CD label face; Between calculating and read, passes through step S3 the number of width of cloth silk; Step S4 such as fruit bat silk number do not reach predetermined number, then get back to step S2 and continue to read reflected light total amount signal; If width of cloth silk number reaches predetermined number, then enter next step; Step S5 will obtain predetermined number reflected light total amount signal, import computing unit again, and calculate the mean value of reflected light total amount signal; Step S6 dynamically sets dynamic cutter standard value to 1/2nd of reflected light total amount signal averaging according to the mean value of reflected light total amount signal; Step S7 reflected light total amount signal is through after the processing of dynamic cutter, and the acquisition coded signal enters step S8 becomes ring operating characteristics in the light carving dish label surface through processor decodes information.
Therefore, the acquisition method of second embodiment of the invention label surface code signals, can be by calculating predetermined several width of cloth silks, obtain the reflected light total amount signal averaging of predetermined several interior ring operation characteristic zone codings, dynamically set dynamically cutting standard value, allow the central authorities of reflected light total amount signal of more approaching predetermined several codings of standard value, reach the purpose of ring operation characteristic zone coded signal in the accurate acquisition label surface.
The above, only in order to convenient explanation the preferred embodiments of the present invention, scope of the present invention is not limited to these preferred embodiments, and is all according to any change that the present invention did, and not breaking away under the spirit of the present invention, all belongs to the scope of claim of the present invention.
Claims (10)
1. capturing label surface code signals method, its step comprises:
(1) coding of ring operation characteristic zone one circle in the reading tag face produces reflected light total amount signal;
(2) calculate this reflected light total amount signal magnitude mean value;
(3) set the cutting standard value at this mean value 1/2nd;
(4) cut this reflected light total amount signal, the acquisition coded signal; And
(5) this coded signal of decoding.
2. capturing label surface code signals method as claimed in claim 1, wherein this reflected light total amount signal of this step (4) be higher than the cutting standard value be high level signal, reflected light total amount signal be lower than the cutting standard value be low level signal, with the acquisition coded signal.
3. capturing label surface code signals method as claimed in claim 1, wherein this step (5) is decoded into coded signal the information of ring operation characteristic zone in the label surface.
4. capturing label surface code signals method, its step comprises:
(1) ring operation characteristic zone coding in the reading tag face produces reflected light total amount signal;
(2) calculate the number of the label surface width of cloth silk that passes through between reading;
(3) check the width of cloth silk number pass through do not reach predetermined several, then get back to step (1) and continue to read reflected light total amount signal; Be scheduled to several if the width of cloth silk number of passing through reaches, then enter step (4);
(4) calculate this reflected light total amount signal magnitude mean value;
(5) set the cutting standard value at this mean value 1/2nd;
(6) cut this reflected light total amount signal, the acquisition coded signal; And
(7) this coded signal of decoding.
5. capturing label surface code signals method as claimed in claim 4, wherein this reflected light total amount signal of this step (6) be higher than the cutting standard value be high level signal, reflected light total amount signal be lower than the cutting setting value be low level signal, with the acquisition coded signal.
6. capturing label surface code signals method as claimed in claim 4, wherein this step (7) is decoded into coded signal the information of ring operation characteristic zone in the label surface.
7. a capturing label surface code signals device is located in the CD-ROM drive, comprises:
Read head is launched laser radiation in light carving dish label surface, and receives the reflected light of its operation characteristic zone coding, forms reflected light total amount signal;
Computing unit calculates the mean value of this coding reflected light total amount signal magnitude;
Dynamic cutter, dynamically the standard value of setting cutting is cut this reflected light total amount signal and is become high level or low level signal at 1/2nd of this mean value, with the acquisition coded signal; And
Processor, this coded signal of decoding.
8. capturing label surface code signals device as claimed in claim 7, wherein this is encoded to the coding of operation characteristic zone one circle.
9. capturing label surface code signals device as claimed in claim 7, wherein this is encoded to predetermined several codings in the operation characteristic zone.
10. capturing label surface code signals device as claimed in claim 7, the wherein information of the coded signal of this operation characteristic zone decoding bright dipping carving dish.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101322887A CN101877228A (en) | 2009-04-30 | 2009-04-30 | Method and device for capturing label surface code signals |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101322887A CN101877228A (en) | 2009-04-30 | 2009-04-30 | Method and device for capturing label surface code signals |
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| CN101877228A true CN101877228A (en) | 2010-11-03 |
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| CN2009101322887A Pending CN101877228A (en) | 2009-04-30 | 2009-04-30 | Method and device for capturing label surface code signals |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104470229A (en) * | 2014-12-18 | 2015-03-25 | 浪潮(北京)电子信息产业有限公司 | Method and device for removing copper foil on pins of PCB element |
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2009
- 2009-04-30 CN CN2009101322887A patent/CN101877228A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104470229A (en) * | 2014-12-18 | 2015-03-25 | 浪潮(北京)电子信息产业有限公司 | Method and device for removing copper foil on pins of PCB element |
| CN104470229B (en) * | 2014-12-18 | 2018-03-16 | 浪潮(北京)电子信息产业有限公司 | The method and device that copper foil removes at printed circuit board component pin |
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Open date: 20101103 |